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stm32f429i_discovery_lcd.c
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stm32f429i_discovery_lcd.c
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/**
******************************************************************************
* @file stm32f429i_discovery_lcd.c
* @author MCD Application Team
* @version V1.0.1
* @date 28-October-2013
* @brief This file includes the LCD driver for ILI9341 Liquid Crystal
* Display Modules of STM32F429I-DISCO kit (MB1075).
******************************************************************************
* @attention
*
* <h2><center>© COPYRIGHT 2013 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f429i_discovery_lcd.h"
//#include "fonts.c"
/** @addtogroup Utilities
* @{
*/
/** @addtogroup STM32F4_DISCOVERY
* @{
*/
/** @addtogroup STM32F429I_DISCOVERY
* @{
*/
/** @defgroup STM32F429I_DISCOVERY_LCD
* @brief This file includes the LCD driver for (ILI9341)
* @{
*/
/** @defgroup STM32F429I_DISCOVERY_LCD_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @defgroup STM32F429I_DISCOVERY_LCD_Private_Defines
* @{
*/
#define POLY_Y(Z) ((int32_t)((Points + Z)->X))
#define POLY_X(Z) ((int32_t)((Points + Z)->Y))
/**
* @}
*/
/** @defgroup STM32F429I_DISCOVERY_LCD_Private_Macros
* @{
*/
#define ABS(X) ((X) > 0 ? (X) : -(X))
/**
* @}
*/
/** @defgroup STM32F429I_DISCOVERY_LCD_Private_Variables
* @{
*/
static sFONT *LCD_Currentfonts;
/* Global variables to set the written text color */
static uint16_t CurrentTextColor = 0x0000;
static uint16_t CurrentBackColor = 0xFFFF;
/* Default LCD configuration with LCD Layer 1 */
static uint32_t CurrentFrameBuffer = LCD_FRAME_BUFFER;
static uint32_t CurrentLayer = LCD_BACKGROUND_LAYER;
/**
* @}
*/
/** @defgroup STM32F429I_DISCOVERY_LCD_Private_FunctionPrototypes
* @{
*/
#ifndef USE_Delay
static void delay(__IO uint32_t nCount);
#endif /* USE_Delay*/
static void PutPixel(int16_t x, int16_t y);
static void LCD_PolyLineRelativeClosed(pPoint Points, uint16_t PointCount, uint16_t Closed);
static void LCD_AF_GPIOConfig(void);
/**
* @}
*/
/** @defgroup STM32F429I_DISCOVERY_LCD_Private_Functions
* @{
*/
/**
* @brief DeInitializes the LCD.
* @param None
* @retval None
*/
void LCD_DeInit(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* LCD Display Off */
LCD_DisplayOff();
/* LCD_SPI disable */
SPI_Cmd(LCD_SPI, DISABLE);
/* LCD_SPI DeInit */
SPI_I2S_DeInit(LCD_SPI);
/* Disable SPI clock */
RCC_APB2PeriphClockCmd(LCD_SPI_CLK, DISABLE);
/* Configure NCS in Output Push-Pull mode */
GPIO_InitStructure.GPIO_Pin = LCD_NCS_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(LCD_NCS_GPIO_PORT, &GPIO_InitStructure);
/* Configure SPI pins: SCK, MISO and MOSI */
GPIO_InitStructure.GPIO_Pin = LCD_SPI_SCK_PIN;
GPIO_Init(LCD_SPI_SCK_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = LCD_SPI_MISO_PIN;
GPIO_Init(LCD_SPI_MISO_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = LCD_SPI_MOSI_PIN;
GPIO_Init(LCD_SPI_MOSI_GPIO_PORT, &GPIO_InitStructure);
/* GPIOA configuration */
GPIO_PinAFConfig(GPIOA, GPIO_PinSource3, GPIO_AF_MCO);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource4, GPIO_AF_MCO);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource6, GPIO_AF_MCO);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource11, GPIO_AF_MCO);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource12, GPIO_AF_MCO);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_6 |
GPIO_Pin_11 | GPIO_Pin_12;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOA, &GPIO_InitStructure);
/* GPIOB configuration */
GPIO_PinAFConfig(GPIOB, GPIO_PinSource0, GPIO_AF_MCO);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource1, GPIO_AF_MCO);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource8, GPIO_AF_MCO);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource9, GPIO_AF_MCO);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource10, GPIO_AF_MCO);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource11, GPIO_AF_MCO);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_8 |
GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOB, &GPIO_InitStructure);
/* GPIOC configuration */
GPIO_PinAFConfig(GPIOC, GPIO_PinSource6, GPIO_AF_MCO);
GPIO_PinAFConfig(GPIOC, GPIO_PinSource7, GPIO_AF_MCO);
GPIO_PinAFConfig(GPIOC, GPIO_PinSource10, GPIO_AF_MCO);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOC, &GPIO_InitStructure);
/* GPIOD configuration */
GPIO_PinAFConfig(GPIOD, GPIO_PinSource3, GPIO_AF_MCO);
GPIO_PinAFConfig(GPIOD, GPIO_PinSource6, GPIO_AF_MCO);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3 | GPIO_Pin_6;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOD, &GPIO_InitStructure);
/* GPIOF configuration */
GPIO_PinAFConfig(GPIOF, GPIO_PinSource10, GPIO_AF_MCO);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOF, &GPIO_InitStructure);
/* GPIOG configuration */
GPIO_PinAFConfig(GPIOG, GPIO_PinSource6, GPIO_AF_MCO);
GPIO_PinAFConfig(GPIOG, GPIO_PinSource7, GPIO_AF_MCO);
GPIO_PinAFConfig(GPIOG, GPIO_PinSource10, GPIO_AF_MCO);
GPIO_PinAFConfig(GPIOG, GPIO_PinSource11, GPIO_AF_MCO);
GPIO_PinAFConfig(GPIOG, GPIO_PinSource12, GPIO_AF_MCO);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_10 |
GPIO_Pin_11 | GPIO_Pin_12;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOG, &GPIO_InitStructure);
}
/**
* @brief Initializes the LCD.
* @param None
* @retval None
*/
void LCD_Init(void)
{
LTDC_InitTypeDef LTDC_InitStruct;
/* Configure the LCD Control pins ------------------------------------------*/
LCD_CtrlLinesConfig();
LCD_ChipSelect(DISABLE);
LCD_ChipSelect(ENABLE);
/* Configure the LCD_SPI interface -----------------------------------------*/
LCD_SPIConfig();
/* Power on the LCD --------------------------------------------------------*/
LCD_PowerOn();
/* Enable the LTDC Clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_LTDC, ENABLE);
/* Enable the DMA2D Clock */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2D, ENABLE);
/* Configure the LCD Control pins */
LCD_AF_GPIOConfig();
/* Configure the FMC Parallel interface : SDRAM is used as Frame Buffer for LCD */
SDRAM_Init();
/* LTDC Configuration *********************************************************/
/* Polarity configuration */
/* Initialize the horizontal synchronization polarity as active low */
LTDC_InitStruct.LTDC_HSPolarity = LTDC_HSPolarity_AL;
/* Initialize the vertical synchronization polarity as active low */
LTDC_InitStruct.LTDC_VSPolarity = LTDC_VSPolarity_AL;
/* Initialize the data enable polarity as active low */
LTDC_InitStruct.LTDC_DEPolarity = LTDC_DEPolarity_AL;
/* Initialize the pixel clock polarity as input pixel clock */
LTDC_InitStruct.LTDC_PCPolarity = LTDC_PCPolarity_IPC;
/* Configure R,G,B component values for LCD background color */
LTDC_InitStruct.LTDC_BackgroundRedValue = 0;
LTDC_InitStruct.LTDC_BackgroundGreenValue = 0;
LTDC_InitStruct.LTDC_BackgroundBlueValue = 0;
/* Configure PLLSAI prescalers for LCD */
/* Enable Pixel Clock */
/* PLLSAI_VCO Input = HSE_VALUE/PLL_M = 1 Mhz */
/* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAI_N = 192 Mhz */
/* PLLLCDCLK = PLLSAI_VCO Output/PLLSAI_R = 192/4 = 48 Mhz */
/* LTDC clock frequency = PLLLCDCLK / RCC_PLLSAIDivR = 48/8 = 6 Mhz */
RCC_PLLSAIConfig(192, 7, 4);
RCC_LTDCCLKDivConfig(RCC_PLLSAIDivR_Div4);
/* Enable PLLSAI Clock */
RCC_PLLSAICmd(ENABLE);
/* Wait for PLLSAI activation */
while(RCC_GetFlagStatus(RCC_FLAG_PLLSAIRDY) == RESET)
{
}
/* Timing configuration */
/* Configure horizontal synchronization width */
LTDC_InitStruct.LTDC_HorizontalSync = 9;
/* Configure vertical synchronization height */
LTDC_InitStruct.LTDC_VerticalSync = 1;
/* Configure accumulated horizontal back porch */
LTDC_InitStruct.LTDC_AccumulatedHBP = 29;
/* Configure accumulated vertical back porch */
LTDC_InitStruct.LTDC_AccumulatedVBP = 3;
/* Configure accumulated active width */
LTDC_InitStruct.LTDC_AccumulatedActiveW = 269;
/* Configure accumulated active height */
LTDC_InitStruct.LTDC_AccumulatedActiveH = 323;
/* Configure total width */
LTDC_InitStruct.LTDC_TotalWidth = 279;
/* Configure total height */
LTDC_InitStruct.LTDC_TotalHeigh = 327;
LTDC_Init(<DC_InitStruct);
}
/**
* @brief Initializes the LCD Layers.
* @param None
* @retval None
*/
void LCD_LayerInit(void)
{
LTDC_Layer_InitTypeDef LTDC_Layer_InitStruct;
/* Windowing configuration */
/* In this case all the active display area is used to display a picture then :
Horizontal start = horizontal synchronization + Horizontal back porch = 30
Horizontal stop = Horizontal start + window width -1 = 30 + 240 -1
Vertical start = vertical synchronization + vertical back porch = 4
Vertical stop = Vertical start + window height -1 = 4 + 320 -1 */
LTDC_Layer_InitStruct.LTDC_HorizontalStart = 30;
LTDC_Layer_InitStruct.LTDC_HorizontalStop = (LCD_PIXEL_WIDTH + 30 - 1);
LTDC_Layer_InitStruct.LTDC_VerticalStart = 4;
LTDC_Layer_InitStruct.LTDC_VerticalStop = (LCD_PIXEL_HEIGHT + 4 - 1);
/* Pixel Format configuration*/
LTDC_Layer_InitStruct.LTDC_PixelFormat = LTDC_Pixelformat_RGB565;
/* Alpha constant (255 totally opaque) */
LTDC_Layer_InitStruct.LTDC_ConstantAlpha = 255;
/* Default Color configuration (configure A,R,G,B component values) */
LTDC_Layer_InitStruct.LTDC_DefaultColorBlue = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorGreen = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorRed = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorAlpha = 0;
/* Configure blending factors */
LTDC_Layer_InitStruct.LTDC_BlendingFactor_1 = LTDC_BlendingFactor1_CA;
LTDC_Layer_InitStruct.LTDC_BlendingFactor_2 = LTDC_BlendingFactor2_CA;
/* the length of one line of pixels in bytes + 3 then :
Line Lenth = Active high width x number of bytes per pixel + 3
Active high width = LCD_PIXEL_WIDTH
number of bytes per pixel = 2 (pixel_format : RGB565)
*/
LTDC_Layer_InitStruct.LTDC_CFBLineLength = ((LCD_PIXEL_WIDTH * 2) + 3);
/* the pitch is the increment from the start of one line of pixels to the
start of the next line in bytes, then :
Pitch = Active high width x number of bytes per pixel */
LTDC_Layer_InitStruct.LTDC_CFBPitch = (LCD_PIXEL_WIDTH * 2);
/* Configure the number of lines */
LTDC_Layer_InitStruct.LTDC_CFBLineNumber = LCD_PIXEL_HEIGHT;
/* Start Address configuration : the LCD Frame buffer is defined on SDRAM */
LTDC_Layer_InitStruct.LTDC_CFBStartAdress = LCD_FRAME_BUFFER;
/* Initialize LTDC layer 1 */
LTDC_LayerInit(LTDC_Layer1, <DC_Layer_InitStruct);
/* Configure Layer2 */
/* Start Address configuration : the LCD Frame buffer is defined on SDRAM w/ Offset */
LTDC_Layer_InitStruct.LTDC_CFBStartAdress = LCD_FRAME_BUFFER + BUFFER_OFFSET;
/* Configure blending factors */
LTDC_Layer_InitStruct.LTDC_BlendingFactor_1 = LTDC_BlendingFactor1_PAxCA;
LTDC_Layer_InitStruct.LTDC_BlendingFactor_2 = LTDC_BlendingFactor2_PAxCA;
/* Initialize LTDC layer 2 */
LTDC_LayerInit(LTDC_Layer2, <DC_Layer_InitStruct);
/* LTDC configuration reload */
LTDC_ReloadConfig(LTDC_IMReload);
/* Enable foreground & background Layers */
LTDC_LayerCmd(LTDC_Layer1, ENABLE);
LTDC_LayerCmd(LTDC_Layer2, ENABLE);
/* LTDC configuration reload */
LTDC_ReloadConfig(LTDC_IMReload);
/* Set default font */
LCD_SetFont(&LCD_DEFAULT_FONT);
/* dithering activation */
LTDC_DitherCmd(ENABLE);
}
/**
* @brief Controls LCD Chip Select (CS) pin
* @param NewState CS pin state
* @retval None
*/
void LCD_ChipSelect(FunctionalState NewState)
{
if (NewState == DISABLE)
{
GPIO_ResetBits(LCD_NCS_GPIO_PORT, LCD_NCS_PIN); /* CS pin low: LCD disabled */
}
else
{
GPIO_SetBits(LCD_NCS_GPIO_PORT, LCD_NCS_PIN); /* CS pin high: LCD enabled */
}
}
/**
* @brief Sets the LCD Layer.
* @param Layerx: specifies the Layer foreground or background.
* @retval None
*/
void LCD_SetLayer(uint32_t Layerx)
{
if (Layerx == LCD_BACKGROUND_LAYER)
{
CurrentFrameBuffer = LCD_FRAME_BUFFER;
CurrentLayer = LCD_BACKGROUND_LAYER;
}
else
{
CurrentFrameBuffer = LCD_FRAME_BUFFER + BUFFER_OFFSET;
CurrentLayer = LCD_FOREGROUND_LAYER;
}
}
/**
* @brief Sets the LCD Text and Background colors.
* @param TextColor: specifies the Text Color.
* @param BackColor: specifies the Background Color.
* @retval None
*/
void LCD_SetColors(uint16_t TextColor, uint16_t BackColor)
{
CurrentTextColor = TextColor;
CurrentBackColor = BackColor;
}
/**
* @brief Gets the LCD Text and Background colors.
* @param TextColor: pointer to the variable that will contain the Text
Color.
* @param BackColor: pointer to the variable that will contain the Background
Color.
* @retval None
*/
void LCD_GetColors(uint16_t *TextColor, uint16_t *BackColor)
{
*TextColor = CurrentTextColor;
*BackColor = CurrentBackColor;
}
/**
* @brief Sets the Text color.
* @param Color: specifies the Text color code RGB(5-6-5).
* @retval None
*/
void LCD_SetTextColor(uint16_t Color)
{
CurrentTextColor = Color;
}
/**
* @brief Sets the Background color.
* @param Color: specifies the Background color code RGB(5-6-5).
* @retval None
*/
void LCD_SetBackColor(uint16_t Color)
{
CurrentBackColor = Color;
}
/**
* @brief Sets the Text Font.
* @param fonts: specifies the font to be used.
* @retval None
*/
void LCD_SetFont(sFONT *fonts)
{
LCD_Currentfonts = fonts;
}
/**
* @brief Configure the transparency.
* @param transparency: specifies the transparency,
* This parameter must range from 0x00 to 0xFF.
* @retval None
*/
void LCD_SetTransparency(uint8_t transparency)
{
if (CurrentLayer == LCD_BACKGROUND_LAYER)
{
LTDC_LayerAlpha(LTDC_Layer1, transparency);
}
else
{
LTDC_LayerAlpha(LTDC_Layer2, transparency);
}
LTDC_ReloadConfig(LTDC_IMReload);
}
/**
* @brief Gets the Text Font.
* @param None.
* @retval the used font.
*/
sFONT *LCD_GetFont(void)
{
return LCD_Currentfonts;
}
/**
* @brief Clears the selected line.
* @param Line: the Line to be cleared.
* This parameter can be one of the following values:
* @arg LCD_LINE_x: where x can be: 0..13 if LCD_Currentfonts is Font16x24
* 0..26 if LCD_Currentfonts is Font12x12 or Font8x12
* 0..39 if LCD_Currentfonts is Font8x8
* @retval None
*/
void LCD_ClearLine(uint16_t Line)
{
uint16_t refcolumn = 0;
/* Send the string character by character on lCD */
while ((refcolumn < LCD_PIXEL_WIDTH) && (((refcolumn + LCD_Currentfonts->Width)& 0xFFFF) >= LCD_Currentfonts->Width))
{
/* Display one character on LCD */
LCD_DisplayChar(Line, refcolumn, ' ');
/* Decrement the column position by 16 */
refcolumn += LCD_Currentfonts->Width;
}
}
/**
* @brief Clears the hole LCD.
* @param Color: the color of the background.
* @retval None
*/
void LCD_Clear(uint16_t Color)
{
uint32_t index = 0;
/* erase memory */
for (index = 0x00; index < BUFFER_OFFSET; index++)
{
*(__IO uint16_t*)(CurrentFrameBuffer + (2*index)) = Color;
}
}
/**
* @brief Sets the cursor position.
* @param Xpos: specifies the X position.
* @param Ypos: specifies the Y position.
* @retval Display Address
*/
uint32_t LCD_SetCursor(uint16_t Xpos, uint16_t Ypos)
{
return CurrentFrameBuffer + 2*(Xpos + (LCD_PIXEL_WIDTH*Ypos));
}
/**
* @brief Config and Sets the color Keying.
* @param RGBValue: Specifies the Color reference.
* @retval None
*/
void LCD_SetColorKeying(uint32_t RGBValue)
{
LTDC_ColorKeying_InitTypeDef LTDC_colorkeying_InitStruct;
/* configure the color Keying */
LTDC_colorkeying_InitStruct.LTDC_ColorKeyBlue = 0x0000FF & RGBValue;
LTDC_colorkeying_InitStruct.LTDC_ColorKeyGreen = (0x00FF00 & RGBValue) >> 8;
LTDC_colorkeying_InitStruct.LTDC_ColorKeyRed = (0xFF0000 & RGBValue) >> 16;
if (CurrentLayer == LCD_BACKGROUND_LAYER)
{
/* Enable the color Keying for Layer1 */
LTDC_ColorKeyingConfig(LTDC_Layer1, <DC_colorkeying_InitStruct, ENABLE);
LTDC_ReloadConfig(LTDC_IMReload);
}
else
{
/* Enable the color Keying for Layer2 */
LTDC_ColorKeyingConfig(LTDC_Layer2, <DC_colorkeying_InitStruct, ENABLE);
LTDC_ReloadConfig(LTDC_IMReload);
}
}
/**
* @brief Disable the color Keying.
* @param RGBValue: Specifies the Color reference.
* @retval None
*/
void LCD_ReSetColorKeying(void)
{
LTDC_ColorKeying_InitTypeDef LTDC_colorkeying_InitStruct;
if (CurrentLayer == LCD_BACKGROUND_LAYER)
{
/* Disable the color Keying for Layer1 */
LTDC_ColorKeyingConfig(LTDC_Layer1, <DC_colorkeying_InitStruct, DISABLE);
LTDC_ReloadConfig(LTDC_IMReload);
}
else
{
/* Disable the color Keying for Layer2 */
LTDC_ColorKeyingConfig(LTDC_Layer2, <DC_colorkeying_InitStruct, DISABLE);
LTDC_ReloadConfig(LTDC_IMReload);
}
}
/**
* @brief Draws a character on LCD.
* @param Xpos: the Line where to display the character shape.
* @param Ypos: start column address.
* @param c: pointer to the character data.
* @retval None
*/
void LCD_DrawChar(uint16_t Xpos, uint16_t Ypos, const uint16_t *c)
{
uint32_t index = 0, counter = 0, xpos =0;
uint32_t Xaddress = 0;
xpos = Xpos*LCD_PIXEL_WIDTH*2;
Xaddress += Ypos;
for(index = 0; index < LCD_Currentfonts->Height; index++)
{
for(counter = 0; counter < LCD_Currentfonts->Width; counter++)
{
if((((c[index] & ((0x80 << ((LCD_Currentfonts->Width / 12 ) * 8 ) ) >> counter)) == 0x00) &&(LCD_Currentfonts->Width <= 12))||
(((c[index] & (0x1 << counter)) == 0x00)&&(LCD_Currentfonts->Width > 12 )))
{
/* Write data value to all SDRAM memory */
*(__IO uint16_t*) (CurrentFrameBuffer + (2*Xaddress) + xpos) = CurrentBackColor;
}
else
{
/* Write data value to all SDRAM memory */
*(__IO uint16_t*) (CurrentFrameBuffer + (2*Xaddress) + xpos) = CurrentTextColor;
}
Xaddress++;
}
Xaddress += (LCD_PIXEL_WIDTH - LCD_Currentfonts->Width);
}
}
/**
* @brief Displays one character (16dots width, 24dots height).
* @param Line: the Line where to display the character shape .
* This parameter can be one of the following values:
* @arg Linex: where x can be 0..29
* @param Column: start column address.
* @param Ascii: character ascii code, must be between 0x20 and 0x7E.
* @retval None
*/
void LCD_DisplayChar(uint16_t Line, uint16_t Column, uint8_t Ascii)
{
Ascii -= 32;
LCD_DrawChar(Line, Column, &LCD_Currentfonts->table[Ascii * LCD_Currentfonts->Height]);
}
/**
* @brief Displays a maximum of 20 char on the LCD.
* @param Line: the Line where to display the character shape .
* This parameter can be one of the following values:
* @arg Linex: where x can be 0..9
* @param *ptr: pointer to string to display on LCD.
* @retval None
*/
void LCD_DisplayStringLine(uint16_t Line, uint8_t *ptr)
{
uint16_t refcolumn = 0;
/* Send the string character by character on lCD */
while ((refcolumn < LCD_PIXEL_WIDTH) && ((*ptr != 0) & (((refcolumn + LCD_Currentfonts->Width) & 0xFFFF) >= LCD_Currentfonts->Width)))
{
/* Display one character on LCD */
LCD_DisplayChar(Line, refcolumn, *ptr);
/* Decrement the column position by width */
refcolumn += LCD_Currentfonts->Width;
/* Point on the next character */
ptr++;
}
}
/**
* @brief Sets a display window
* @param Xpos: specifies the X bottom left position from 0 to 240.
* @param Ypos: specifies the Y bottom left position from 0 to 320.
* @param Height: display window height, can be a value from 0 to 320.
* @param Width: display window width, can be a value from 0 to 240.
* @retval None
*/
void LCD_SetDisplayWindow(uint16_t Xpos, uint16_t Ypos, uint16_t Height, uint16_t Width)
{
if (CurrentLayer == LCD_BACKGROUND_LAYER)
{
/* reconfigure the layer1 position */
LTDC_LayerPosition(LTDC_Layer1, Xpos, Ypos);
LTDC_ReloadConfig(LTDC_IMReload);
/* reconfigure the layer1 size */
LTDC_LayerSize(LTDC_Layer1, Width, Height);
LTDC_ReloadConfig(LTDC_IMReload);
}
else
{
/* reconfigure the layer2 position */
LTDC_LayerPosition(LTDC_Layer2, Xpos, Ypos);
LTDC_ReloadConfig(LTDC_IMReload);
/* reconfigure the layer2 size */
LTDC_LayerSize(LTDC_Layer2, Width, Height);
LTDC_ReloadConfig(LTDC_IMReload);
}
}
/**
* @brief Disables LCD Window mode.
* @param None
* @retval None
*/
void LCD_WindowModeDisable(void)
{
LCD_SetDisplayWindow(0, 0, LCD_PIXEL_HEIGHT, LCD_PIXEL_WIDTH);
}
/**
* @brief Displays a line.
* @param Xpos: specifies the X position, can be a value from 0 to 240.
* @param Ypos: specifies the Y position, can be a value from 0 to 320.
* @param Length: line length.
* @param Direction: line direction.
* This parameter can be one of the following values: LCD_DIR_HORIZONTAL or LCD_DIR_VERTICAL.
* @retval None
*/
void LCD_DrawLine(uint16_t Xpos, uint16_t Ypos, uint16_t Length, uint8_t Direction)
{
DMA2D_InitTypeDef DMA2D_InitStruct;
uint32_t Xaddress = 0;
uint16_t Red_Value = 0, Green_Value = 0, Blue_Value = 0;
Xaddress = CurrentFrameBuffer + 2*(LCD_PIXEL_WIDTH*Ypos + Xpos);
Red_Value = (0xF800 & CurrentTextColor) >> 11;
Blue_Value = 0x001F & CurrentTextColor;
Green_Value = (0x07E0 & CurrentTextColor) >> 5;
/* Configure DMA2D */
DMA2D_DeInit();
DMA2D_InitStruct.DMA2D_Mode = DMA2D_R2M;
DMA2D_InitStruct.DMA2D_CMode = DMA2D_RGB565;
DMA2D_InitStruct.DMA2D_OutputGreen = Green_Value;
DMA2D_InitStruct.DMA2D_OutputBlue = Blue_Value;
DMA2D_InitStruct.DMA2D_OutputRed = Red_Value;
DMA2D_InitStruct.DMA2D_OutputAlpha = 0x0F;
DMA2D_InitStruct.DMA2D_OutputMemoryAdd = Xaddress;
if(Direction == LCD_DIR_HORIZONTAL)
{
DMA2D_InitStruct.DMA2D_OutputOffset = 0;
DMA2D_InitStruct.DMA2D_NumberOfLine = 1;
DMA2D_InitStruct.DMA2D_PixelPerLine = Length;
}
else
{
DMA2D_InitStruct.DMA2D_OutputOffset = LCD_PIXEL_WIDTH - 1;
DMA2D_InitStruct.DMA2D_NumberOfLine = Length;
DMA2D_InitStruct.DMA2D_PixelPerLine = 1;
}
DMA2D_Init(&DMA2D_InitStruct);
/* Start Transfer */
DMA2D_StartTransfer();
/* Wait for CTC Flag activation */
while(DMA2D_GetFlagStatus(DMA2D_FLAG_TC) == RESET)
{
}
}
/**
* @brief Displays a rectangle.
* @param Xpos: specifies the X position, can be a value from 0 to 240.
* @param Ypos: specifies the Y position, can be a value from 0 to 320.
* @param Height: display rectangle height, can be a value from 0 to 320.
* @param Width: display rectangle width, can be a value from 0 to 240.
* @retval None
*/
void LCD_DrawRect(uint16_t Xpos, uint16_t Ypos, uint16_t Height, uint16_t Width)
{
/* draw horizontal lines */
LCD_DrawLine(Xpos, Ypos, Width, LCD_DIR_HORIZONTAL);
LCD_DrawLine(Xpos, (Ypos+ Height), Width, LCD_DIR_HORIZONTAL);
/* draw vertical lines */
LCD_DrawLine(Xpos, Ypos, Height, LCD_DIR_VERTICAL);
LCD_DrawLine((Xpos + Width), Ypos, Height, LCD_DIR_VERTICAL);
}
/**
* @brief Draw a circle.
* @param Xpos: specifies the X position, can be a value from 0 to 240.
* @param Ypos: specifies the Y position, can be a value from 0 to 320.
* @param Radius: radius of the circle.
* @retval None
*/
void LCD_DrawCircle(uint16_t Xpos, uint16_t Ypos, uint16_t Radius)
{
int x = -Radius, y = 0, err = 2-2*Radius, e2;
do {
*(__IO uint16_t*) (CurrentFrameBuffer + (2*((Xpos-x) + LCD_PIXEL_WIDTH*(Ypos+y)))) = CurrentTextColor;
*(__IO uint16_t*) (CurrentFrameBuffer + (2*((Xpos+x) + LCD_PIXEL_WIDTH*(Ypos+y)))) = CurrentTextColor;
*(__IO uint16_t*) (CurrentFrameBuffer + (2*((Xpos+x) + LCD_PIXEL_WIDTH*(Ypos-y)))) = CurrentTextColor;
*(__IO uint16_t*) (CurrentFrameBuffer + (2*((Xpos-x) + LCD_PIXEL_WIDTH*(Ypos-y)))) = CurrentTextColor;
e2 = err;
if (e2 <= y) {
err += ++y*2+1;
if (-x == y && e2 <= x) e2 = 0;
}
if (e2 > x) err += ++x*2+1;
}
while (x <= 0);
}
/**
* @brief Draw a full ellipse.
* @param Xpos: specifies the X position, can be a value from 0 to 240.
* @param Ypos: specifies the Y position, can be a value from 0 to 320.
* @param Radius: minor radius of ellipse.
* @param Radius2: major radius of ellipse.
* @retval None
*/
void LCD_DrawFullEllipse(int Xpos, int Ypos, int Radius, int Radius2)
{
int x = -Radius, y = 0, err = 2-2*Radius, e2;
float K = 0, rad1 = 0, rad2 = 0;
rad1 = Radius;
rad2 = Radius2;
if (Radius > Radius2)
{
do
{
K = (float)(rad1/rad2);
LCD_DrawLine((Xpos+x), (Ypos-(uint16_t)(y/K)), (2*(uint16_t)(y/K) + 1), LCD_DIR_VERTICAL);
LCD_DrawLine((Xpos-x), (Ypos-(uint16_t)(y/K)), (2*(uint16_t)(y/K) + 1), LCD_DIR_VERTICAL);
e2 = err;
if (e2 <= y)
{
err += ++y*2+1;
if (-x == y && e2 <= x) e2 = 0;
}
if (e2 > x) err += ++x*2+1;
}
while (x <= 0);
}
else
{
y = -Radius2;
x = 0;
do
{
K = (float)(rad2/rad1);
LCD_DrawLine((Xpos-(uint16_t)(x/K)), (Ypos+y), (2*(uint16_t)(x/K) + 1), LCD_DIR_HORIZONTAL);
LCD_DrawLine((Xpos-(uint16_t)(x/K)), (Ypos-y), (2*(uint16_t)(x/K) + 1), LCD_DIR_HORIZONTAL);
e2 = err;
if (e2 <= x)
{
err += ++x*2+1;
if (-y == x && e2 <= y) e2 = 0;
}
if (e2 > y) err += ++y*2+1;
}
while (y <= 0);
}
}
/**
* @brief Displays an Ellipse.
* @param Xpos: specifies the X position, can be a value from 0 to 240.
* @param Ypos: specifies the Y position, can be a value from 0 to 320.
* @param Radius: specifies Radius.
* @param Radius2: specifies Radius2.
* @retval None
*/
void LCD_DrawEllipse(int Xpos, int Ypos, int Radius, int Radius2)
{
int x = -Radius, y = 0, err = 2-2*Radius, e2;
float K = 0, rad1 = 0, rad2 = 0;
rad1 = Radius;
rad2 = Radius2;
if (Radius > Radius2)
{
do {
K = (float)(rad1/rad2);
*(__IO uint16_t*) (CurrentFrameBuffer + (2*((Xpos-x) + LCD_PIXEL_WIDTH*(Ypos+(uint16_t)(y/K))))) = CurrentTextColor;
*(__IO uint16_t*) (CurrentFrameBuffer + (2*((Xpos+x) + LCD_PIXEL_WIDTH*(Ypos+(uint16_t)(y/K))))) = CurrentTextColor;
*(__IO uint16_t*) (CurrentFrameBuffer + (2*((Xpos+x) + LCD_PIXEL_WIDTH*(Ypos-(uint16_t)(y/K))))) = CurrentTextColor;
*(__IO uint16_t*) (CurrentFrameBuffer + (2*((Xpos-x) + LCD_PIXEL_WIDTH*(Ypos-(uint16_t)(y/K))))) = CurrentTextColor;
e2 = err;
if (e2 <= y) {
err += ++y*2+1;
if (-x == y && e2 <= x) e2 = 0;
}
if (e2 > x) err += ++x*2+1;
}
while (x <= 0);
}
else
{
y = -Radius2;
x = 0;
do {
K = (float)(rad2/rad1);
*(__IO uint16_t*) (CurrentFrameBuffer + (2*((Xpos-(uint16_t)(x/K)) + LCD_PIXEL_WIDTH*(Ypos+y)))) = CurrentTextColor;
*(__IO uint16_t*) (CurrentFrameBuffer + (2*((Xpos+(uint16_t)(x/K)) + LCD_PIXEL_WIDTH*(Ypos+y)))) = CurrentTextColor;
*(__IO uint16_t*) (CurrentFrameBuffer + (2*((Xpos+(uint16_t)(x/K)) + LCD_PIXEL_WIDTH*(Ypos-y)))) = CurrentTextColor;
*(__IO uint16_t*) (CurrentFrameBuffer + (2*((Xpos-(uint16_t)(x/K)) + LCD_PIXEL_WIDTH*(Ypos-y)))) = CurrentTextColor;
e2 = err;
if (e2 <= x) {
err += ++x*2+1;
if (-y == x && e2 <= y) e2 = 0;
}
if (e2 > y) err += ++y*2+1;
}
while (y <= 0);
}
}
/**
* @brief Displays a mono-color picture.
* @param Pict: pointer to the picture array.
* @retval None
*/
void LCD_DrawMonoPict(const uint32_t *Pict)
{
uint32_t index = 0, counter = 0;
for(index = 0; index < 2400; index++)
{
for(counter = 0; counter < 32; counter++)
{
if((Pict[index] & (1 << counter)) == 0x00)
{
*(__IO uint16_t*)(CurrentFrameBuffer) = CurrentBackColor;
}
else
{
*(__IO uint16_t*)(CurrentFrameBuffer) = CurrentTextColor;
}
}
}
}
/**
* @brief Displays a bitmap picture loaded in the internal Flash.
* @param BmpAddress: Bmp picture address in the internal Flash.
* @retval None
*/
void LCD_WriteBMP(uint32_t BmpAddress)
{
uint32_t index = 0, size = 0, width = 0, height = 0, bit_pixel = 0;
uint32_t Address;
uint32_t currentline = 0, linenumber = 0;
Address = CurrentFrameBuffer;
/* Read bitmap size */
size = *(__IO uint16_t *) (BmpAddress + 2);
size |= (*(__IO uint16_t *) (BmpAddress + 4)) << 16;
/* Get bitmap data address offset */
index = *(__IO uint16_t *) (BmpAddress + 10);
index |= (*(__IO uint16_t *) (BmpAddress + 12)) << 16;
/* Read bitmap width */
width = *(uint16_t *) (BmpAddress + 18);
width |= (*(uint16_t *) (BmpAddress + 20)) << 16;
/* Read bitmap height */
height = *(uint16_t *) (BmpAddress + 22);
height |= (*(uint16_t *) (BmpAddress + 24)) << 16;